openapi: 3.1.0
info:
  title: Amazon CloudFormation Change Sets API
  description: Amazon CloudFormation is an infrastructure as code service that enables you to model, provision, and manage AWS and third-party resources by treating infrastructure as code. You use templates to define your resources and their dependencies, then deploy them as stacks.
  version: '2010-05-15'
  contact:
    name: Amazon Web Services
    url: https://aws.amazon.com/cloudformation/
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
servers:
- url: https://cloudformation.amazonaws.com
  description: Amazon CloudFormation regional endpoint
- url: https://cloudformation.{region}.amazonaws.com
  description: Amazon CloudFormation regional endpoint
  variables:
    region:
      default: us-east-1
      description: The AWS region
security:
- aws_auth: []
tags:
- name: Change Sets
  description: Operations for managing CloudFormation change sets
paths:
  /?Action=CreateChangeSet:
    get:
      operationId: CreateChangeSet
      summary: Amazon CloudFormation Create a change set
      description: Creates a list of changes that will be applied to a stack so that you can review the changes before executing them. Change sets allow you to see how your changes might impact your running resources before implementing them.
      parameters:
      - name: Action
        in: query
        required: true
        schema:
          type: string
          enum:
          - CreateChangeSet
      - name: Version
        in: query
        required: true
        schema:
          type: string
          default: '2010-05-15'
      - name: StackName
        in: query
        required: true
        description: The name or the unique ID of the stack for which you are creating a change set.
        schema:
          type: string
      - name: ChangeSetName
        in: query
        required: true
        description: The name of the change set.
        schema:
          type: string
      - name: TemplateBody
        in: query
        description: Structure containing the template body.
        schema:
          type: string
      - name: TemplateURL
        in: query
        description: Location of file containing the template body.
        schema:
          type: string
          format: uri
      - name: ChangeSetType
        in: query
        description: The type of change set operation.
        schema:
          type: string
          enum:
          - CREATE
          - UPDATE
          - IMPORT
      responses:
        '200':
          description: Successful response
          content:
            text/xml:
              schema:
                $ref: '#/components/schemas/CreateChangeSetOutput'
        '400':
          description: Client error
        '500':
          description: Server error
      tags:
      - Change Sets
  /?Action=DescribeChangeSet:
    get:
      operationId: DescribeChangeSet
      summary: Amazon CloudFormation Describe a change set
      description: Returns the inputs and a list of changes that CloudFormation will make if you execute the change set.
      parameters:
      - name: Action
        in: query
        required: true
        schema:
          type: string
          enum:
          - DescribeChangeSet
      - name: Version
        in: query
        required: true
        schema:
          type: string
          default: '2010-05-15'
      - name: ChangeSetName
        in: query
        required: true
        description: The name or Amazon Resource Name (ARN) of the change set.
        schema:
          type: string
      - name: StackName
        in: query
        description: The name or the unique ID of the stack associated with the change set.
        schema:
          type: string
      - name: NextToken
        in: query
        description: A string that identifies the next page of information to retrieve.
        schema:
          type: string
      responses:
        '200':
          description: Successful response
          content:
            text/xml:
              schema:
                $ref: '#/components/schemas/DescribeChangeSetOutput'
        '400':
          description: Client error
        '500':
          description: Server error
      tags:
      - Change Sets
  /?Action=ExecuteChangeSet:
    get:
      operationId: ExecuteChangeSet
      summary: Amazon CloudFormation Execute a change set
      description: Updates a stack using the input information that was provided when the specified change set was created.
      parameters:
      - name: Action
        in: query
        required: true
        schema:
          type: string
          enum:
          - ExecuteChangeSet
      - name: Version
        in: query
        required: true
        schema:
          type: string
          default: '2010-05-15'
      - name: ChangeSetName
        in: query
        required: true
        description: The name or ARN of the change set to execute.
        schema:
          type: string
      - name: StackName
        in: query
        description: The name or unique ID of the stack associated with the change set.
        schema:
          type: string
      - name: DisableRollback
        in: query
        description: Preserves the state of previously provisioned resources when an operation fails.
        schema:
          type: boolean
      responses:
        '200':
          description: Successful response
        '400':
          description: Client error
        '500':
          description: Server error
      tags:
      - Change Sets
components:
  schemas:
    Change:
      type: object
      properties:
        Type:
          type: string
          enum:
          - Resource
        ResourceChange:
          type: object
          properties:
            Action:
              type: string
              enum:
              - Add
              - Modify
              - Remove
              - Import
              - Dynamic
            LogicalResourceId:
              type: string
            PhysicalResourceId:
              type: string
            ResourceType:
              type: string
            Replacement:
              type: string
              enum:
              - 'True'
              - 'False'
              - Conditional
            Scope:
              type: array
              items:
                type: string
    DescribeChangeSetOutput:
      type: object
      properties:
        ChangeSetName:
          type: string
        ChangeSetId:
          type: string
        StackId:
          type: string
        StackName:
          type: string
        Description:
          type: string
        ExecutionStatus:
          type: string
        Status:
          type: string
        StatusReason:
          type: string
        Changes:
          type: array
          items:
            $ref: '#/components/schemas/Change'
        NextToken:
          type: string
        CreationTime:
          type: string
          format: date-time
    CreateChangeSetOutput:
      type: object
      properties:
        Id:
          type: string
          description: The ARN of the change set.
        StackId:
          type: string
          description: The unique ID of the stack.
  securitySchemes:
    aws_auth:
      type: apiKey
      name: Authorization
      in: header
      description: AWS Signature Version 4 authentication